Using autocomplete and RE-Searching address with only postal_code

Hi, I am struggling with a specific problem. For each event a user uploads I get the address using google autocomplete. I want to set it up so users can say don't show my specific address and instead it will use the latitude and longitude of the city or zip code returned from their address.

        mounted() {
            this.autocomplete = new google.maps.places.Autocomplete(
                (this.$refs.autocomplete),
                {types: ['geocode']}
            );
            this.autocomplete.addListener('place_changed', this.setPlace);
        },

I tried adding this to the mounted

            this.incognito = new google.maps.places.Autocomplete(
                (this.hiddenSearch),
                {types: ['geocode']}
            );

and then when I submit

onIncognitoSubmit() {
                this.hiddenSearch = this.location.postal_code ? this.location.postal_code : this.location.city;
                let place = this.incognito.getPlace();

but I get an undefined and when the page first loads I get the error InvalidValueError: not an instance of HTMLInputElement. Thanks for any help!