Jamal, yes Bud's will remove the magazines for you. During checkout, after choosing your FFL, a box will pop up asking if you want the mags removed.

Jamal, if magazine capacity is the only issue, Buds personnel have offered to remove/replace magazines. I would contact Buds Customer Service to see whether or not they are still doing this at 1-859-368-0371 9am-9pm EST Mon-Fri. or use the Blue Chat now button at the bottom right corner 9am to 9pm Mon - Sat and 9am to 7pm Sunday.

Yes but you'll need to select the "buds high capacity magazine removal service at check out" and also you should be aware that buds doesn't replace the magazines with the compliant versions, you'll have to order those. Another thing you might consider is most manufacturers (including Glock) make state compliant version that already come with 10rd magazines
Right now the compliant magazine model is out of stock at buds, but is in stock here
https://gun.deals/search/apachesolr_search/764503175022