Terrible behaviour from security

A security guard confronted me regarding picking up my temporarily disabled sister from the entrance, which I did explain to him but he keeps insisting that I must park in a disabled parking (for a quick pickup because I took out the vehicle from a Normal parking bay near another entrance), he then kept saying that I'm being aggressive to which I responded that taxis are always ranking outside the entrance and picking up/dropping of passengers, to which he responded that only taxis are allowed to pick up and drop off (so there's a difference in rules for private vehicles and taxis) , he then repeated that I'm being aggressive (for pointing the obvious differentiation) to which I responded that if you want to see me get aggressive ,I can , to which he responded you can come try (in a very aggression provoking way) to which I responded back aggressively, rules are supposed to be equal for everyone, if I'm not allowed to pick up at the entrance the same rule must apply to taxis (which cause havoc on a busy day) y'all need to gets y'all's act together and apply rules that don't discriminate.