Need advice, repair shop, new tires

I recently bought new tires and decided to let a shop install and balance them. I removed the wheels and took them in. After they were installed and put back on the bike (by myself), I rode around 20 miles total between a few trips.

I rode into my garage yesterday and noticed something on the ground... the weights they had "secured" onto the rear wheel. Today I found the other set laying on the ground right next to my bike... arrrghghh! Doesn't look like there's a good place to mount the flat ones, but shouldnt' they know how to do it properly?

Do I need to get the rear wheel re-balanced? The two sets were both made up of four 0.5 oz square sticky weights, both mounted to the left and right side of my rear wheel. I have no idea where they are supposed to go. No signs of sticky or left-over residue. Do I just ride and see if I notice anything?

Also, what do I do about the shop? Do I call them and ask them to re-balance the wheel? Do I just ride my bike up there and tell them to take it off and re-install on the bike too, or just bring them the wheel and do the rest. I'd like to handle it politely, but I also want to know what you'd do. Thanks for the support!

Ideally I'd ask for refund and go somewhere else. Otherwise I'd have them redo for free and potentially not go back if you have alternatives. All can do politely

Use the weights that clamp to the spokes. Ive changed my tires 3 times already and havent even had to remove the original weights. I set the tire according to the dot mark.

Theres also those dyna bead things but i know nothing about them.

I put dyna bead knock offs in mine. They work great as far as i can tell.

If you have spokes amazon sells weights that slip around the spoke nipple and clamp on with a set screw. They come in a variety pack and can be re-used over and over.

They put the clippy kind on the front wheel but used stickies on the rear wheel. Maybe to balance the wheel side to side?

I'd do the work myself but I don't have any gear or tools for it. Just annoyed that I have to take the bike back up there now. I have three kids 5 and under... I'm hurting for time these days and really don't like wasting it. Going to call them tomorrow when they open.

I balanced my tire using the axle on two car stands. Worked well enough for me, the first part of this video explains.

In everyone's experience, is it even that big of a deal if I can't notice it? Can that cause some sort of extra wear or damage if they are not balanced properly?

I would definitely recommend riding with balanced tires, otherwise you can have some dangerous pogo-ing/wobble especially at high speeds. It could be your wheels were, by chance, well balanced when the new tires were put on, but I'd personally rather be safe than sorry. If you don't want to deal with removing the tires/going to the shop to get them rebalanced, you could try the Dynabeads. Quite easy to "install", I think the consensus is they kinda work, could be a short term solution.

I called them up this morning and they said to bring the bike by and they'll take the wheel off and rebalance for me, whew! I'm a software engineer so I can just bring my laptop up with me and work from there. Hurray!

We're a single car family and this 83' is my daily driver now, so definitely need it to be in tip top shape.

They obviously dont know how to work on spoked wheels.. Ive lost ALL faith in shop mechanics. If I dont see actual engine machining equipment or tell tale signs of quality work, Im out.

I wouldnt use sticky weights or clip on weights ever on spoked wheel.

Mount the tires with the heavy side of the tire opposite the valve stem, fill them up and ride it..

That simple. I thought my tires would be crazy unbalanced when I didnt do it, Ive done the ton plenty of times with backyard mounted tires i did myself. I commute 90 miles a day on my XS on the highway.