One problem after another...its a semi long story

[Dinzdale40]

if i were you i would drain my oil into a clear container just to check it...

one to make sure they changed your oil....
two to make sure that's not where your coolant went...

if theres coolant in you oil...you are lookin at a leaky head gasket or something along those lines....which is not the oil change places fault...maybe changing the oil just triggered the sympton of a problem that was already there...

i only say this cause you said it was still acting funny even with coolant filled back up...and because i doubt the oil change guys did anything bad...

 

[Misterd0505]

i'm gonna assume you have an auto? check your tranny fluid... if the tranny cooler inside your radiator cracked or is rotted through, that's where all of your coolant went. if i'm wrong and you have a standard, just disregard this post lol