Self-induced brake issue

09 Camry, 110k. Went to friend's house - friend has very steep driveway. Use parking brake. Don't usually use parking brake, so forget to disengage for about a car length when backing out before car beeps to remind me. Disengage, head out. Going forward, car shimmies and makes thwump-thwump-thwump-thwump sound, feels/sounds almost akin to a flat tire, shimmy gets worse/noise frequency faster over 20mph. Stop, can't see anything obvious. Crawl the two miles home at 20mph. Bad smell from LR corner. Brake potentially frozen on that wheel? Other potential injuries? Many thanks.